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Tomato Presence: Virtual Hand Ownership with a Disappearing Hand

Tomato Presence: Virtual Hand Ownership with a Disappearing ...

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30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Steed, Anthony Drga, Vit UCL Dept Comp Sci London England

ISBN: (纸本)9798350348392

Tomato presence is a term coined by Owlchemy Labs to refer to the observation that players of their game Job Simulator can experience 'hand presence' over an object that is not their hand. When playing the game, if a player grabs an object, their virtual hand disappears leaving the grabbed object. While players still observe a direct proprioceptive match between their hand movements and the object being manipulated, it seems that there should be a conflict with current theories of how users might react to visual/proprioceptive mismatch of their embodiment. We run a hand ownership experiment where we implement standard object grasp and the disappearing hand grasp. We show that on a body-ownership questionnaire there is evidence to support the notion that users still feel ownership over a virtual hand even though it is periodically disappearing. We also confirm that most users do not report that their hand disappeared.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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Improved Lightweight Rendering of Road Networks based on Contraction Hierarchies 17

Improved Lightweight Rendering of Road Networks based on Con...

引用

17th Pacific visualization Conference (PacificVis)

作者： Berner, Lukas Erwerle, Johannes Funke, Stefan Proissl, Claudius Rieg, Florian Storandt, Sabine Humboldt Univ Berlin Germany Univ Stuttgart Stuttgart Germany Univ Konstanz Constance Germany

ISBN: (纸本)9798350393811;9798350393804

Contraction Hierarchies (CH) are one of the most popular techniques for accelerating shortest path queries. In previous works, it has been shown that CH in principle can be instrumented to also produce variable level-of-detail renderings of road networks. Yet, the existing approach still suffers from severe drawbacks like topological inconsistencies or distortion of the overall shape of the road network, which impairs the practical usability. We significantly improve upon the existing approach both in terms of quality of the visual representation as well as query times. As a result, we obtain a lightweight augmentation of the CH data structure that allows for very efficient and visually pleasing rendering of massive road network data.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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HapticSphere: Physical Support To Enable Precision Touch Interaction in Mobile Mixed-Reality 26

HapticSphere: Physical Support To Enable Precision Touch Int...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Wang, Chiu-Hsuan Hsieh, Chen-Yuan Yu, Neng-Hao Bianchi, Andrea Chan, Liwei NTUST Dept Ind Design Taipei Taiwan Korea Adv Inst Sci & Technol Dept Ind Design Seoul South Korea Natl Chiao Tung Univ Dept Comp Sci Taipei Taiwan

ISBN: (纸本)9781728113777

This work presents I lapticSphere, a wearable spherical surface enabled by bridging a finger and the head-mounted display (HMD) with a passive string. Users perceive a physical support on a finger attached to a string, when extending their arm and reaching out to the string's maximum extension. This physical support assists users in precise touch interaction in the context of stationary and walking virtual or mixed-reality experiences. We propose three methods of attachment of the haptic string (directly on the head or on the body), and illustrate a novel single-step calibration algorithm that supports these configurations by estimating a grand haptic sphere, once a head-coordinated touch interaction is established. Two user studies were conducted to validate our approach and to compare the touch performance with physical support in sitting and walking conditions in the context of mobile mixed-reality scenarios. The results show that, in the walking condition, touch interaction with physical support significantly outperformed the visual-only condition.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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Speech-Driven Facial Animation by LSTM-RNN for Communication Use 26

Speech-Driven Facial Animation by LSTM-RNN for Communication...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Nishimura, Ryosuke Sakata, Nobuchika Tominaga, Tomu Hijikata, Yoshinori Harada, Kensuke Kiyokawa, Kiyoshi Osaka Univ Suita Osaka Japan Nara Inst Sci & Technol Ikoma Japan Kwansei Gakuin Univ Nishinomiya Hyogo Japan

ISBN: (纸本)9781728113777

The goal of this research is developing a system that a rich facial animation can be used in communication is generated from only speech. Generally, a source of the generating facial animation is a camera. Using cameras as an input source, it causes limitations of the angle of view of the camera or problems that cannot be aware of the human face, depending on the orientation of the face. Therefore, it is reasonable for developing a system for generating a facial animation using only voice. In this study, we generate facial expressions from only speech using LSTM-RNN. Comparing 3 patterns of speech analysis data, we showed that the proposed method using A -weighting is effective for facial expression estimation.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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Studying "Avatar Transitions" in Augmented Reality: Influence on Sense of Embodiment and Physiological Activity 21

Studying "Avatar Transitions" in Augmented Reality: Influenc...

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21st IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Otono, Riku Genay, Adelaide Perusquia-Hernandez, Monica Isoyama, Naoya Uchiyama, Hideaki Hachet, Martin Lecuyer, Anatole Kiyokawa, Kiyoshi NAIST Ikoma Japan INRIA Bordeaux France INRIA Rennes France

ISBN: (数字)9781665453653

ISBN: (纸本)9781665453653

The impact of avatar transitions, in which an avatar's appearance is changed, has been little studied. We implemented an avatar transition system that is decomposed into two parts: an active one and a passive one. In the active transition, the avatar's appearance is transformed according to the user's physical action. In the passive transition, users automatically experience the same transition without physical action. The influence of transitions on the user's physical performance and the sense of embodiment was explored. Our results show that active transitions increase the sense of agency and magnitude of surface electromyography (sEMG) compared to passive transitions, and both transitions increase the sEMG magnitude following the virtual Reality embodiment.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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VocabulARy replicated: comparing teenagers to young adults 21

VocabulARy replicated: comparing teenagers to young adults

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21st IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Weerasinghe, Maheshya Biener, Verena Grubert, Jens Deja, Jordan Aiko Attygalle, Nuwan T. Trajkovska, Karolina Kljun, Matjaz Pucihar, Klen Copic Univ St Andrews St Andrews Fife Scotland Univ Primorska Koper Slovenia Coburg Univ Appl Sci Coburg Germany Fac Informat Studies Novo Mesto Novo Mesto Slovenia

ISBN: (数字)9781665453653

ISBN: (纸本)9781665453653

A critical component of user studies is gaining access to a representative sample of the population researches intend to investigate. Nevertheless, the vast majority of human-computer interaction (HCI) studies, including augmented reality (AR) studies, rely on convenience sampling. The outcomes of these studies are often based on results obtained from university students aged between 19 and 26 years. In order to investigate how the results from one of our studies are affected by convenience sampling, we replicated the AR-supported language learning study called VocabulARy with 24 teenagers, aged between 14 and 19 years. The results verified most of the outcomes from the original study. In addition, it also revealed that teenagers found learning significantly less mentally demanding compared to young adults, and completed the study in a significantly shorter time. All this at no cost to learning outcomes.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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VR as a Content Creation Tool for Movie Previsualisation 26

VR as a Content Creation Tool for Movie Previsualisation

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Galvane, Quentin Lin, I-Sheng Argelaguet, Fernando Li, Tsai-Yen Christie, Marc INRIA Rennes Rennes France Natl ChengChi Univ Taipei Taiwan INRIA Rennes IRISA Rennes France

ISBN: (纸本)9781728113777

Creatives in animation and film productions have forever been exploring the use of new means to prototype their visual sequences before realizing them, by relying on hand-drawn storyboards, physical mockups or more recently 3D modelling and animation tools. However these 3D tools are designed in mind for dedicated animators rather than creatives such as film directors or directors of photography and remain complex to control and master. In this paper we propose a VR authoring system which provides intuitive ways of crafting visual sequences, both for expert animators and expert creatives in the animation and film industry. The proposed system is designed to reflect the traditional process through (i) a storyboarding mode that enables rapid creation of annotated still images, (ii) a previsualisation mode that enables the animation of the characters, objects and cameras, and (iii) a technical mode that enables the placement and animation of complex camera rigs ( such as cameras cranes) and light rigs. Our methodology strongly relies on the benefits of VR manipulations to re-think how content creation can be performed in this specific context, typically how to animate contents in space and time. As a result, the proposed system is complimentary to existing tools, and provides a seamless back-and -forth process between all stages of previsualisation. We evaluated the tool with professional users to gather experts' perspectives on the specific benefits of VR in 3D content creation.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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Hybrid UIs for Music Exploration in AR and VR 17

Hybrid UIs for Music Exploration in AR and VR

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17th IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Elvezio, Carmine Amelot, Pierre Boyle, Robert Wes, Catherine Ilona Feiner, Steven Columbia Univ New York NY 10027 USA

ISBN: (纸本)9781538675922

We present hybrid user interfaces that facilitate interaction with music content in 3D. using a combination of 2D and 3D input and display devices. Participants will explore an online music library, some wearing AR or VR head-worn displays used alone or in conjunction with touch screens. and others using only touch screens. They will select genres. artists, albums. and songs. interacting through a combination of 3D hand-tracking and 21) multi-touch technologies.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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Comparing Different Augmented Reality Support Applications for Cooperative Repair of an Industrial Robot 17

Comparing Different Augmented Reality Support Applications f...

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17th IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Aschenbrenner, Doris Rojkov, Michael Leutert, Florian Verlinden, Jouke Lukosch, Stephan Latoschik, Marc Erich Schilling, Klaus Delft Univ Technol IDE Delft Netherlands Univ Wurzburg HCI Grp Wurzburg Germany Zentrum Telemat Wurzburg Germany Delft Univ Technol TBM Delft Netherlands

ISBN: (纸本)9781538675922

Digitization and the growing capabilities of data networks enable companies to perform tasks via remote support, which previously required service personnel to travel. But which mixed reality method leads to better results regarding human factors, grounding and performance criteria? This paper reports on a collaborative user study, in which a local worker is guided by a remote expert with the help of different augmented reality methods, specifically see-through HMD, spatial projection, and video-mixing tablet. The task to perform is the exchange of a controller in a switch cabinet of an industrial robot, a task rather typical for failure detection within the field. Our study was conducted in collaboration with a technician school, where 50 technician apprentices participated in our study. Our results show clear advantages of using augmented reality (AR) versus traditional conditions (audio, video, screenshot) to enable remote support. It further gives significant indications for using a projection based AR method.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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CubeVR: Digital Affordances for Architecture Undergraduate Education using Virtual Reality 26

CubeVR: Digital Affordances for Architecture Undergraduate E...

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26th IEEE Conference on Virtual Reality and 3D User Interfaces (VR)

作者： Raikwar, Aditya D'Souza, Newton Rogers, Ciana Kress, Mathew Williams, Adam Rishe, Naphtali D. Ortega, Francisco R. Colorado State Univ Ft Collins CO 80523 USA Florida Int Univ Miami FL 33199 USA

ISBN: (纸本)9781728113777

CubeVR incorporates the traditional studio-based learning in architecture with virtual reality (VR) and in doing so it enables features that are not available or difficult to achieve in the real-world. CubeVR allows students and instructors to move from the existing studio to a virtual environment, allowing for a more impactful learning experience. This paper presents our current state of the CubeVR prototype, informal impressions of users, and the use of different affordances in the virtual world.

关键词： human-centered computing-visualization-visualization techniques-treemaps human-centered computing-visualization-visualization design and evaluation methods

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